Improvement in fluid-meters



Z'Sheets--Sheetll B. H U BER.

Huid-Meters.

N0154,486 l Patented Aug.25,1874.

THE GRAPHIC C0- PHLYTOLITH.39&4| PARK PLACEIMY.

Fluid-Meters.

Paten-ted Aug; 25,1874'.v

WITNESSES.

UNITED STATES PATENT OFFICE.

BERTHOLD HUBER, OF BOSTON, MASSACHUSETTS, ASSIGNOE VTO HIMSELF ANDFRAN'GIS'MEISEL, OF SAME PLACE.

IMPROVEMENTIN FLUID-METERS.

i Specification formingpar't of `Letters Patent No. 154,486, datedAAugust 25, 1874; application filed July 6,1874. i

To all whom it may concern:

Be it known that I, BERTHo'Ln HUBER, of-

Boston, Suffolk county, Massachusetts, have invented an Instrument forMeasuring Fluids, i `of which the following isa specification:

.. upon both sides.

The-drawings accompanying this specication'represent, in Figure l, aplan, with part of the case removed; in Fig. 2, a vertical section ofthe whole instrument; in Fig. 3, Va section of the valves; in Fig. 4, asection of the actuating levers; and in Fig. 5, a view of the sectoralplate, to be hereinafter explained.

In these drawings, A represents a hollow closed cylinder, of equaldiameter throughout, which constitutes the `case or shell oftheinstrument, and which serves to contain the valve mechanism, andforms the measuringchamber. The case-A is divided centrally, `or nearlyso, by an elastic `or flexible pulsating diaphragm, B, which is inclosedor clamped between the two halves a b of the case, this diaphragmserving at once to seal the joint between the two, and to impart to thevalves the motion of the water escaping from such` case alternately uponopposite sides of such diaphragm. Upon one side or half, b, of the caseA I cast a boss, b1,\and through-thisfboss I create a passage orconduit, 0, divided by'a central partition, al, whose two 'ends areoutside of such case, `and `constitute one-viz., d

the water-inlet or induction-port, and e the water-outlet 0reduction-port-while midway of such boss I create four orifices, f g hc', two v of which-viz., f g-communicate freely with the chambers a lofthe instrument, and the other twoviz., h `if-with the chamber b. Uponythe outer surface of the boss `b, and about each oriice, I .create avalve-seat; and to each pair f h and lg t' of ports I apply a doublepuppet-valve, 7c or l, each valve closing alternately the two ports withwhich it oper.- ates, it being observed that, while the port f isclosedand the port h open, the port g is open and port i closed, andvice versa. In the present instance the valve-operating mechanism islocated in the chamber a, and consists as follows: To one side of thediaphragm B, and centrally thereof, I attach one end of a rod, m, theopposite end of which is pivoted to the inner end of a lever, n, which,in turn, is pivoted at its opposite end upon a horizontal rod, o,supported within standards p p erected within the chamber, the lever n.straddling a radial arm, r, making part of a tubular rock-shaft, o,mounted upon the saidlrod o', and being provided with set-screws s 'c tooperate with this arm, in such manner as to adjust Vthe relativepositions of the lever and shaft and of the diaphragm with respect tothe valves k and l. Immediately alongside of 'the rod m I dispose a bar,t, one end of which slides freely within a bearing, c, and the other endis connected, in a suitable manner, with the arm r,a spring, w, beingcoiled about the bar, and serving to force it toward and actuate the armand rock the shaft o, as hereinafter explained. I furthermore mountloosely.

upon the rod or supporto a second lever, one end, y, of which bears uponthe arm r,

and the other end, a2, is pivoted to the stem of the valve l, while tothe hub b? of such lever av I secure an arm or second lever, c2, thefree end of which operates in connection with a sectoral plate, d2,placed near it, and pivoted upon a post, c2, erected within the chambera, and near to the valve k, as shown in Fig. l of the drawing. The plated2 is overweighted by a weight, f2, applied to its upper kend, and isformed with a notch, g2, of a width somewhat greater than the diameterof the stud Iof the lever c2, with which it operates, the two sides ofthis notch serving,pat alternating periods of time, to actuate the saidlever, as hereinafter. explained, while the stem of the valve k ispivoted to the lever c2 at about the center of the latter.

The two chambers a bare at all times full of water, such water enteringlthe port d, and being linally discharged at the eductc.

Each pulsation of the diaphragm displaces a given amount of water, whichescapes by the 'said educt c; and a suitable register is to be added tothe meter, and connected in a proper manner with the rock-shaft, toindicate the number of pulsations 'of the diaphragm B, and,consequently, of the quantity of water discharged at each pulsation.

The operation of this instrumentor meter is as follows: Taking as astarting-point ltheposition of parts shown in the drawings, in which thediagonally-disposed ports' f and t', are

closed and g and h open, the lever c2 depressed and the weight f 2bearing upon it,l while the diaphragm is distended within the chamber b,and the arm r' of the rock-shaft o at its lowest point and at somedistance from the upper set-screw s; water begins to flow un- Yder asuitable head from chamber a, through the port g, into the conduit C,and escape from the latter by the educt e, while simultaneously withsuch flow water enters the chamber l through the port h. Thiscirculation or ilow of water of necessity drives the diaphragm towardthe chamber a, and continues until such diaphragm is distended, andpasses into such chamber to its extreme limit, the lever n beingelevated by'the diaphragm, and serving, by means of the arm r, to rockthe shaft o, and, consequently, elevate the idle end ofthe bar t, andcompress the spring fw. This move# ment of the diaphragm B, lever n, androckshaft o continues, with the movement of the other parts of themechanism, until the eX- treme limit of such diaphragm in this directionis reached, and the arm r passes beyond a mean line drawn through thecenters of the rodo', arm 1^, and bar t, when the pressure of the springsuddenly throws the said arm r upward, and completes the partialrotation of such shaft, and by means of the lever elevates the free endof the lever c2A and raises the valve la, and at the same time tilts thesectoial plate d2, and throws the'weight from oif such lever, the lowerside of the notch g2 of such plate d2 bearing against the stud of thelever. By the sudden throw of the bar t, and

the consequent elevation of the arm 1' and partial rotation of the shafto, the said arm r' depresses the outer end of the lever w, and lowersthe valve Z. The ports j' and t' are now open, and ports g and h closed;consequently water begins to ow from chamber b into conduit C throughport t', and to fenter chamber a through port f, while the diaphragmretraces its movement, and by the flow yof water is forced toward andinto the chamber b until its extreme limit in this direction is reached,\vhen,by the action of the bar t and spring w,-

the shaft o is rocked in an opposite direction,

the levers and c2 tilted until the valve k is lowered, and the valvelraised, the weight f2 shifted and allowed to bear upon the said leverc2, and the parts returned to the position assumed at the start.

As each distension of the diaphragm displaces an equal quantity ofwater, and as every distension is registered by the indicator, theamount of water passing through the instrument is accurately noted.

The meter may be adapted with equal facility `to register by'feet andinches, or by gallons and fractions of gallons, and operates with equalaccuracy and certainty under any pressure or any volume of water. I havestriven in devising this meter to avoid the objectionable feature of adead-center in the shifting of the valves, and careful reference to theaccompanying drawings will show that I rattainfmy object, as it will beseen that owing to the arrangement of the rocker arm or leverY n androck-shaft o, in connection with the diaphragm B, that the movement ofthe latter is not confined to any specic point, but is free to travel,after the spring has effected the shifting of the valves, according tothe position of the screws s s, or at least would do so did the valvespermit it, and it will be seen that by this arrangement the diaphragmmust move until the valves are reversed.

The only power to be overcome, and, consequently, the only pressuretaken from the water, is what is requisite to compress the spring w, andshift the position of theweight, and to overcome the friction upon thebearings.

The spring maybe quite light, and, as the weight is not acted upon untilthe lever c2 has acquired considerable momentum, the loss of pressure issmall.

The purpose of the weight is to maintain the valves in their properpositions during the transit of the diaphragm and the rocking of thelever n and shaft o, as, but for such weight orl its equivalent,thevalves at such times would be without control, and inoperative to acertain extent. y l

By the employment of puppet-valves, which I provide with elastic faces,I avoid the very serious objections existing in the use of slidesvalves, such as rapid wear and breakage from the presence of sand orabrading substances in the water, friction between the valve and itsseat, &c.

My meter may he made neat in appearance, and compact in form, andproduced at small expense, as it is mostly cast directly into the shaft,and requires but little tting.V

I claim- 1. The lever u, in combination with the arm m, and levers w ando2, and the diaphragm and valves, substantially as herein described,whereby a dead center or point'is avoided, essentially as and forpurposes stated.

2. In combination with the pulsating diaphragm, lever a, arm m, andlevers a: and c2, the arm 1^, and rod and spring tw, as and for thepurposes set forth.

3. The weighted plate d2 and rod and spring tw, in combination with thediaphragm-valves and system of levers m n m c2, as and' for thepurposes-shown and set forth.

' BERTHOLD HUBER.y

Witnesses:

F. CURTIS, W. 'E. BOARDMANI

